Implementation of the Hide and Seek of the OpenAI -- Part 1

Collaboration is an essential function of multiplayer game such as a MOBA, and Soccer game. In the case of Reinforcement Learning, the transition probabilities should be stationary in order to be trained well. Due to this point, famous early study of the OpenAI tried to apply a additional method to deal with the fluctuating transition probabilities. However, recent research of the DeepMind for MARL say that multiple agent game also can be converged to the Nash Equilibrium despite of unstable transition probability. In theory such multi-agent systems may continue to explore forever.